Recent questions in Olympiad-Science

When light passes through water it is

asked Oct 25, 2017 by priyanka.c

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Which of the following is NOT a type of muscle?

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What is a bill ?

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In the following figure identify the living thing?

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What is the color of the shadow during day time caused by opaque object?

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Which are in-organic water pollutants among the following?

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What is an herbicide?

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Long shadows with different positions are found when sun is low in western horizon in

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The polar star is

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Which variety of plant does not need soil to grow?

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Which gland is shaped liked a butterfly

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A nerve cell is also called a

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The spinal cord helps carry __________ back and forth between your body and your brain

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Both eyes seeing the same object is called?

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The cells in the sensory organs that receive sensory information are called

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Your ears :

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Kids who are between 5 and 12 years old need to sleep this long to feel refreshed and ready to learn the next day:

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Which are tiny holes in the skin that allow sweat to escape

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What kinds of things are your brain and nervous system in charge of ?

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How many glands does endocrine system have?

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When the pancreas doesn't produce insulin, the result is a disease called

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Which bones protect your heart, lungs and liver?

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Which part of the bird's body help them in finding food?

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Which among the following is an example for non living moving thing?

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What kind of plants is the balloon flower?

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What does Air pollution cause

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When light is blocked what occurs?

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The different group of stars is known as

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The main constituents of biogas are

asked Oct 22, 2017 by priyanka.c

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The function of a galvanometer is

asked Oct 22, 2017 by priyanka.c

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What is the force exerted by a magnetic field on a stationary charged particle?

asked Oct 22, 2017 by priyanka.c

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The magnitude of the magnetic field

asked Oct 22, 2017 by priyanka.c

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The slope of the V-I graph determines

asked Oct 22, 2017 by priyanka.c

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Read the given passage below and answer the question When a conductor AB is connected across the terminals of a cell, free electrons begin to drift or move from its end B (connected to the negative terminal of the cell). The current constituted by flowing electrons is called electronic current. Clearly the direction of electronic current is from negative terminal to positive terminal. By convention the direction of motion of positive charges is taken as the direction of electric current. It is from positive terminal to negative terminal. As the electrons are negatively charged, the direction of conventional current in an electric circuit is taken as opposite to the direction of the flow of electrons Which of the following statement are not correct : 1) Both electronic current and conventional current are the same 2) Electronic current and conventional current are opposite 3) Conventional current is from positive terminal to negative terminal 4) Electronic current is from positive terminal to negative terminal

asked Oct 22, 2017 by priyanka.c

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Read the above passage and answer the questions below When a conductor AB is connected across the terminals of a cell, free electrons begin to drift or move from its end B (connected to the negative terminal of the cell). The current constituted by flowing electrons is called electronic current. Clearly the direction of electronic current is from negative terminal to positive terminal. By convention the direction of motion of positive charges is taken as the direction of electric current. It is from positive terminal to negative terminal. As the electrons are negatively charged, the direction of conventional current in an electric circuit is taken as opposite to the direction of the flow of electrons QUESTION : The electronic current

asked Oct 22, 2017 by priyanka.c

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The efficiency of an electric device is

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What is yellow spot in human eye?

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Tyndal effect occurs when

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Bifocal lenses are prescribed for persons suffering from

asked Oct 22, 2017 by priyanka.c

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The apparent depth of an object at the bottom of the tank filled with a liquid of refractive index 1.3 is 7.7 cm. What is the actual depth of the liquid in the tank?

asked Oct 22, 2017 by priyanka.c

2 answers

The apparent depth of an object at the bottom of the tank filled with a liquid of refractive index 1.3 is 7.7 cm. What is the actual depth of the liquid in the tank?

asked Oct 22, 2017 by priyanka.c

1 answer

Refractive index depends upon (1) Nature of the medium (2)Wavelength of the light (3) Temperature (4)Angle of incidence

asked Oct 22, 2017 by priyanka.c

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Relation between f and R is

asked Oct 22, 2017 by priyanka.c

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The power of a lens is given as +2D, then its focal length is

asked Oct 22, 2017 by priyanka.c

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Read the following passage below and answer the given question Some of the conventional sources of energy have poor efficiency and produce a lot of smoke because of incomplete combustion. A few example are wood, animal dung, agricultural wastes etc; Wood has poor efficiency because only 8% of the wood is utilized as fuel. This results in incomplete combustion. Also, it produces gases like carbon di oxide which is hazardous to our health. Animal dung when mixed with mud and made in the form of cakes,which are then dried and burnt are also used for domestic purpose. As it burns, it produces a lot of smoke and hence results in air pollution. Agricultural wastes like sugarcane are burnt for use in industries. This is more preferable for biogas plants. QUESTION : Animal dung and agricultural waste are preferable for

asked Oct 17, 2017 by priyanka.c

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Read the following passage and answer the question given below Some of the conventional sources of energy have poor efficiency and produce a lot of smoke because of incomplete combustion. A few examples are wood, animal dung, agricultural wastes, etc; Wood has poor efficiency because only 8% of the wood is utilized as fuel. The results in incomplete combustion. Also, it produces gases like carbon di oxide which is hazardous to our health. Animal dung when mixed with mud and made in the form of cakes, which are then dried and burnt are also used for domestic purpose. As it burns, it produces a lot of smoke and hence results in air pollution. Agricultural wastes lie sugarcane are burnt for use in industries. This is more preferable for biogas plants. QUESTION : The smoke which is produced by the conventional source is due to

asked Oct 17, 2017 by priyanka.c

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Two identical prisms A'B'C' are given. Which of the following placements will give maximum dispersion ?

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A red rose when seen through a green filter will appear

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The angle between two refracting faces of a prism is known as

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Which of the following correctly represents the variable of 1/u versus 1/v for a concave mirror?

asked Oct 17, 2017 by priyanka.c

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